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Futaba S-U305
Standard

Futaba S-U305

Compatible Hardware

*Based on known specs.

Technical Specifications

Last Updated: 2026-10-22
Identity
Brand Futaba
Product Number 01102376-3
Category Hobby
Performance
Torque
6.0V 123.60 oz-in
4.8V 98.60 oz-in Below Average
Speed
6.0V 0.18 sec/60°
4.8V 0.23 sec/60° Bottom 10%
Physical
Weight 1.64 ozTop 10%
Dimensions L 1.575 in
W 0.787 in
H 1.50 in
Drivetrain
Motor Type 3-pole
Gears Metal
Gear Spline/Teeth 25 T
Rotation/Support Dual Bearings
Control & Signal
Modulation Digital
Rotational Range 120°
Pulse Width 920-2120 µs
Programmable Yes
Electrical & Environment
Operating Voltage 4.8–6 V

Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.

Class Comparison

TorqueBelow Average
Stronger than 18% of 1055 Digital Standard servos at 4.8V
SpeedBottom 10%
Faster than 4% of 1038 Digital Standard servos at 4.8V
WeightTop 10%
Lighter than 91% of 1872 Digital Standard servos

Performance Analysis

Shaft Power 0.79–1.27 W
Power Density0.683 W/in³
More power-dense than 8% of 1762 Digital Standard servos
Torque Density2.1204 oz-in/g
Stronger than 24% of 1048 Digital Standard servos
Torque-to-Volume Ratio53.03 oz-in/in³
Denser torque than 17% of 1053 Digital Standard servos
Speed-to-Weight0.09350 (1/sec·g)
Faster than 29% of 1031 Digital Standard servos
Speed-Torque Trade-off22.68
Better balanced than 40% of 1029 Digital Standard servos
Torque Gain per Volt21.13%/V
More voltage-responsive (torque) than 86% of 868 Digital Standard servos
Speed Gain per Volt23.13%/V
More voltage-responsive (speed) than 89% of 868 Digital Standard servos
Voltage Range Width1.2 V
Wider voltage range than 14% of 1552 Digital Standard servos

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